Born in Seoul, Lee began piano playing at the age of 7, and started his musical education at Korea National University of Arts with Professor Daejin Kim at the age of 12.
[2] After graduating in 2003, he journeyed to Europe to pursue further studies: from 2003 to 2006 at the Hochschule für Musik Nürnberg as a pupil of Professors Wolfgang Manz and Julia Goldstein, and at the Hochschule für Musik und Tanz Köln and Universität Mozarteum in Salzburg under the guidance of Professor Pavel Gililov.
Jinsang Lee has performed concerts with conductors such as Vladimir Ashkenazy, Michael Boder, Christopher Warren-Green, David Effron, Heiko Mathias Förster, Peter Gülke, Theodor Guschlbauer, Heinz Holliger, Eivind Gullberg-Jensen, Michail Jurowski, Roman Kofman, Jonathan Nott, Ola Rudner, Muhai Tang, Umeda Toshiaki, Mario Venzago, Christopher Warren-Green and Nikolaj Znaider.
A chamber musician, he is a member of the piano trio Beethoven Trio Bonn with violinist Mikhail Ovrutsky and cellist Grigory Alumyan and performs in various chamber music concerts.
He worked at Steinway Austria for 2 years under the guidance of piano technician Stefan Knüpfer (featured in the docu-movie "Pianomania") while conducting his concert career at the same time.